How to find out the malfunction and repair the fan of the VAZ-2110 stove

The SAUO replaced manual control of the heater, but otherwise the stove remained structurally the same. As in earlier models, the interior heating system is a housing with a radiator installed inside, connected to the cooling system of the power unit - a heat source, dampers that redirect the air flow to the desired zones, and a fan driven by an electric motor, which creates the air flow. SAUO is a controller that, depending on the set parameters, monitors the temperature in the cabin and regulates the position of the dampers, maintaining the specified mode.

Video: Heater VAZ 2110; eleven; 12. Design and principle of operation.

The efficiency of the VAZ-2110 interior heater would be low without the forced creation of air flow, and this task falls on the stove fan.

Preparation

Preparatory activities do not include many complex operations. You will need to do the following:

• Remove the negative terminal from the battery to de-energize the car and protect the car from possible short circuits;
• Drain the coolant from the system. To do this, open the cap of the expansion tank to relieve excess pressure, and then unscrew the drain. The liquid must be drained into a special prepared container.

When draining the cooling liquid, one important rule must be observed - the procedure is carried out only when the engine has cooled down.

If in the future you are going to use the same antifreeze or antifreeze, then choose a clean container for draining.

Preparatory work

So:

• First, the “mass” terminal is removed from the battery.

Replacing the motor on the VAZ 2110 stove

• Next, the coolant is drained from the cooling system into a prepared container.
• If you intend to use old antifreeze, it is necessary to let it settle before pouring it into the engine cooling system.

Model selection

Even if your VAZ 2110 has an old-style electric motor (manufactured before 2004), you can, of course, find a “original” fan. But it is quite possible to install a new type of motor instead - it is larger than the previous one, secured with three bolts. And its cost is not that high.

By the way, the new model heater fan from the VAZ 2110 is even suitable for some Nissan models with minor modifications. This is what the owners of this car often use when they install at least three times cheaper motors in their foreign car during repairs.

Work to replace the fan in the cabin

Replacing the heater motor of a VAZ 2110

The subsequent change of the heater motor will be done directly from inside the car:

• Under the dashboard you need to find the block that goes to the electric motor. She disconnects.
• After this, you will need to unfasten the ground wiring of the electric motor. As a rule, it is pressed to the body by the front mounting nut of the heater.
• The trim and lining of the windshield frame are dismantled, and you cannot do without unscrewing the mounting screws.
• The right upholstery is removed from the interior heater, and the fastening nuts and screws should also be unscrewed.
• The heating hoses are disconnected. At this stage of work, extreme caution must be taken, since antifreeze residues may leak from these hoses and the heater radiator.
• To prevent the smell of coolant in the car interior, you need to lay a material that absorbs moisture well.
• The wiring is disconnected from the electric motor, from the micro-reducer, and also from the pneumatic valve.
• After these steps, remove the front housing with the stove casing. These elements are fixed with brackets and screws. It is worth noting that the engine and motor are located on the casing.
• The latches are removed, and the engine and motor are removed.

Recommendations for replacing the motor

Replacing the heater motor of a VAZ 2110

You can disassemble the electric motor yourself only to evaluate the collector and clean it. If the cause of the breakdown lies in another situation, then it is not advisable for a non-specialist in working with such parts to disassemble it. It's better to buy a new electric motor.

Note! It is also not recommended to dismantle the engine impeller on your own, since installing it in its place will disrupt the balancing, which plays an important role. Naturally, the electric motor will function, but not smoothly, which can lead to breakage of the bearings and noise when the stove is turned on.

Since the stove is in a disassembled state, it becomes possible to calmly view the other components of the cabin heater. So:

• In order for more heat to come from the radiator, you need to dismantle it and wash it. It is fixed on the rear heater casing, which is removed by unscrewing the mounting screws. After this, the radiator can be easily removed and washed under the pressure of water flowing from a hose that is connected to the radiator inlet or outlet tube. The same pressure washes away dirt from the surfaces of the removed radiator.
• To disassemble the air ducts and heater control mechanisms, you will need to remove the instrument panel on which the main air ducts are located.

Note! Usually the panel with the main air ducts is made as one piece, so it must be handled with the utmost care so that it does not have to be replaced later.

• After this, you need to remove the interior air ducts, which are secured with special screws, and the decorative lining of the floor tunnel.

Note! Under this trim there are air ducts for heating the feet, which are attached to the body with screws and latches.

• The air distributor is removed from the dashboard by unscrewing the mounting screws and disconnecting the damper control rod.
• Reassembly must be done in the reverse order of disassembly. If necessary, seal the dampers with glue. You can also seal the mounting points of the hoses with the radiator with sealant.
• When all the parts are assembled and installed in their places, the functioning of all components is checked and antifreeze or antifreeze is added. It all depends on personal preference.
• At the final stage, they check the tightness of the attachment of the hoses to the radiator and the actual operation of the assembled stove.

For those who perceive information visually, it is recommended to watch a video with a detailed description of the actions and several photos that will help you do everything correctly.

Replacement

Now we proceed directly to replacing the motor. You will carry out the procedure from the salon, so make yourself comfortable.

1. Under the dashboard, locate the connector that goes to the heater motor. Turn it off.
2. Next, you need to disconnect the negative wiring of the electric motor. Often on a VAZ 2110 this element is pressed to the body by the front fastening nut.
3. You need to remove the trim and trim from your car's windshield frame. Along the way, you will have to unscrew several fasteners.
4. You need to remove the right side of the upholstery from the stove, after which the fastening nuts are unscrewed.
5. Be sure to disconnect the heating hoses. Try to be as careful as possible here, since coolant will most likely leak from the heating hoses. It is impossible to drain it all, even with the most careful approach.
6. The ends of the hoses can be plugged with something like plugs to prevent liquid from spilling into the cabin.

1. To prevent carpets and floors from being damaged by the cooling liquid, lay down absorbent materials. For example, diapers for adults are perfect. They are available at any pharmacy.
2. Disconnect the wiring from the electric motor, micromotor gearbox and pneumatic valve one by one.
3. Now you can dismantle the front housing along with the casing of your heating stove.
4. These devices are secured using mounting screws and brackets.
5. On the stove casing there is the desired motor, as well as the engine.
6. Remove the latches, and then remove the engine with the motor.

Useful tips

After completing dismantling work, you can remove damaged, non-functioning elements and then install new ones in their place.

But when making repairs, we advise you to follow some important recommendations.

• You can disassemble the electric motor yourself only if you want to check the condition of the collector and clean it;
• If the cause of the breakdown is not the presence of debris and contaminants in the collector, then it is strongly not recommended to work with the electric motor yourself;
• Contact an experienced electrician who can disassemble and return the device to its previous functionality;
• Do not remove the engine impeller. If done incorrectly, you will upset the balance, which plays a huge role in the proper operation of your car's heater. The electric motor will operate if the balancing is out of balance, but the impeller will begin to rotate unevenly, which will lead to beating of the bearings and loud noise when the cabin heater is turned on.

It is not difficult to dismantle the motor yourself, but to repair it, the most correct solution would be to purchase a new electric motor with a motor.

The stove motor is a rather sensitive element that periodically fails. To replace it, no special skills are required, but to repair the element, it is better to contact trusted service stations.

Signs of a malfunctioning heater motor

First of all, you need to check the fuse.
It often turns out that this is the problem. If the heater fuse is blown for any reason, it should be replaced. If after replacing the fuse the stove still does not work, then you should proceed to dismantling and replacing the motor itself. The first sign of a malfunction of the heater motor on a VAZ 2110 may be noise from the motor itself. The reason for this sound may be the lack of lubrication on the engine, or it may indicate the imminent death of the heater motor on the VAZ 2110

Causes of malfunction

Replacing the heater motor of a VAZ 2110

As a rule, there are many reasons for such a malfunction, these include:

• clogging with slag from the stove radiator;
• stove motor failure.

If the stove motor is not functioning, or some of its speeds are not working properly, then it is first recommended to check the resistor, which in other words can be called the stove rheostat. This element is responsible for the speed of the fan. You can purchase such a part in a specialized store that sells auto parts. As for replacement, this can be done with the help of a specialist or on your own, which is not so difficult even for an inexperienced specialist.

Note! In the case of repairing or replacing the heater radiator, it is recommended to contact a car service center, since it is difficult to remove the radiator yourself. To replace the stove motor, you will need minimal knowledge and detailed instructions.

There are heater malfunctions that can be easily fixed by any car enthusiast. For example, a situation may occur when cold air blows through the side deflectors and the windshield heating duct of the heating system, while a hot air flow comes from the lower and central air ducts. Most likely, the reason will be the unsatisfactory operation of the heater damper, which is designed to cut off cold air. In some cases, it prevents the normal passage of cold air. Such faults are most easily identified during the cold season. When bending the damper drive rod, special care must be taken so as not to damage the plastic parts. Please note that plastic becomes more fragile in winter.

Replacing the motor for the stove on a VAZ 2110

Of course, a non-functioning stove causes many problems in winter. If this is not so important in the summer, then in the winter the windows will fog up. You can figure out what the reason is by disassembling the heating system of the car.

How to replace the heater fan on a VAZ 2110-VAZ 2112?

Note! These instructions for replacing the heater motor are suitable for many cars of the tenth family, but not for all, because dozens were produced in very different configurations and designs throughout the entire time, some VAZ 2110 even had an engine from Opel installed from the factory, such a car is marked VAZ 21106, so we won’t be able to write about everything (since it will be a very long article), we’ll just take the most common tenth family and use its example to show how to replace a stove motor through descriptions and pictures!

1. First of all, you will need to get to the motor, it is hidden under a trim that is located under the windshield, and inside this trim, the motor is still placed in a casing, so you will have to remove a lot of decorative elements, in more detail how to do this is described in the article under title: “Replacing the cabin filter on a VAZ 2110” and by the way, the trim that is located under the windshield cannot be removed without removing the brush, and when you lift it, pay attention there will be a tee under it (see the place where it is located on the large photo), disconnect the hose from it that is connected at the bottom (see small photo) and the trim can then be removed from the car.

2. We go further, as soon as all the elements that prevent access to the casing in which the motor is located are removed, find the wires coming from the motor, or to be more precise, one “Plus” wire and one “Minus” wire, so here is the minus (Indicated in green arrow) is secured to the nut (indicated by a blue arrow), you unscrew it, but the plus (indicated by a yellow arrow) is connected to another wire through a wire block and a connector (see small photo), disconnect them from each other.

3. Then, using a flat screwdriver, pry out the four latches (They are indicated by arrows) that fasten two casings together, on one of which the stove motor is attached. Be sure to replace any latches that will be broken during their removal with new ones during reassembly. It is recommended to install all the fasteners in their places to prevent the housings from moving between each other.

4. And finally, unscrew all the screws that hold the casings together, there are only about 8 or 10 of these screws (We could be wrong), when they are all unscrewed, the casings can be separated (see small photo), but just remember where the screws go they are twisted because they have different lengths and you cannot wrap the long ones where the short ones should be located and vice versa.

Note! The stove motor can be removed assembled with the casing, or you can immediately take it out separately, it’s up to you how to do it, but having taken out everything assembled, it will be much easier to disconnect the motor (since it will be more convenient), and the motor is separated in the following way, you will only need just remove two wires (minus wire and plus wire) from the hole into which they are threaded in the casing and that’s it!

5. Installation is carried out in the reverse order of removal, after installing the stove, you will have to use the help of an assistant and find out whether you installed the stove correctly in its normal place or with a skew (If it is skewed, then this will need to be removed immediately), in general, closer to topic, ask an assistant or even get into the car yourself and turn on the stove, while assembling it, i.e. tighten the fastening screws (You don’t even have to tighten everything) and install the clamps and, of course, put the minus on the body, and connect the plus to the connector, then turn it on and if everything works fine in all modes, then turn it off and go tighten the last screws, install the covers under windshield and of course install the brushes, the replacement is complete, if after turning on you hear a crackling noise, then this only means one thing, namely that the heater blades are touching the body in which it is located, then turn off the heater and unscrew the screws , remove the clamps and remove the body together with the stove, place the motor there correctly, tighten everything again and try until the noise disappears, just like it disappeared, screw everything back and install all the parts in the reverse order.

Lada 2110 Banditskaya 10 - ka › Logbook › Replacing the heater motor of a new VAZ 2110

Unfortunately, it was a quick repair; I had to do everything myself in 2 days off, given that it’s 15-18 outside, and it’s not too warm in the garage, down to -10. In general, let’s go step by step. Breakdown: I was driving for work. And suddenly, after one of the stops, I started my car, and realized that when I turned the heater motor control, nothing was happening, at first I thought, well, who knows, it happens, I tried a few more times, silence, checked the fuse, everything is fine. Realizing that the engine was noisy not because it had not been lubricated for a long time, but because it was dying, I put the car in the garage and a decision was made to repair it myself, since the cost of the engine ranged from 1000 to 1800 rubles, and I paid for the repair If only about 1000 rubles more, let's move on to the main thing: - The first thing you need is to disconnect the negative terminal! to avoid any short circuits - Next, you need to unscrew all the screws holding the casing, exactly as shown in the photo with yellow arrows.

Next, we remove the frill and see this picture

further, for more convenient removal, you will need to either bend the casing or remove it, it is difficult to remove because it is attached from below in hard-to-reach places, but I was able to do it, I think you will find it and it will not be difficult to feel with your hand where exactly it is held, so we will skip this moment.

VAZ 2110 heater blows cold, why?

Many owners of “ten” complain that at some point the stove constantly blows cold air and no amount of turning the handles of the automatic heater control system can save the situation. There can be a lot of problems and malfunctions. For example, the ACS controller itself is faulty, the ceiling sensor or micro-geared motor is faulty and simply does not open or close the damper. Another reason is the air (air lock) in the heater radiator, which is simply not capable of heating the air passing through it. Below is a schematic representation of the VAZ 2110 heater device .

Heater dampers VAZ 2110

Often the cause of poor performance of the “tens” heater is the damper of the VAZ 2110 heater . The damper may not close tightly or open poorly. The heater flap itself is made of plastic, which can become warped and perform poorly over time. Many car owners buy a metal damper and change it themselves. How to check the functionality and evaluate the condition of the heater damper? Everything is quite simple, remove the central air duct deflector and there you have it - a damper! Let's look at the photo.

How to Remove the Heater Motor on a VAZ 2110

Replacing a stove fan on a VAZ 2110, VAZ 2111, VAZ 2112

Welcome! Fan oven. If you go into the terminology, the word "fan" means an impeller with blades, but people are so used to saying the word "fan", so this article, which we have named, will actually discuss the issue of replacing the heater, to warn that if the motor that you started doing something wrong, for example, or all the contacts inside it burned out, do not try to restore it, but rather buy a new machine in the store, of course, it is not cheap, but you will install it and forget about the child for a very long time if he is completely gone , Roche and oven stopped working (motor burned out) and it's cold outside, you can take it cheap to analyze or browse various flea markets and much more. d.

The note! To replace the oven you will need: screwdrivers of different types (from short to long), wrenches, spanners, and we recommend stocking up on a new cabin filter (this is only if the filter has not been changed for a long time) To simply remove furnace motor, you need to remove the windshield, and by removing the trim, you will still have access to the cabin filter!

Result:

Where is the fan? When you remove the windshield you should have the following image (see photo below), note the red arrow, it was designed to separate the housing that houses the engine (on the right) and to separate the air intake on the left). There is also a cabin filter where the air intake is located in the oven.

When should I replace the fan? At the beginning of the article we roughly described all the symptoms that can occur if the motor fails, but we must repeat that not all people read everything that is written on the page, in general, this is closer to the essence of the fan. can completely break down (over time, and if there was a lot of voltage, it can simply burn out. Such cases occur due to the negligence of people themselves, some put coins instead of fuses, the wiring begins to melt, and since there is no fuse, the circuit is not opened and not published ( does not work), it may partially (does not work at speed, but this is not an oven, most likely it is the SAUO unit, check, just change it to a known product, if everything starts to work, the unit is still replaced) they start making unpleasant noises and (this is also an oven), for example, squeaking, etc., all these malfunctions appear temporarily and can immediately after purchase if the plate is damaged or should have been in this condition.

The note! By the way, in addition to the engine itself, much more comes out of the system, most often this is the SAUO unit, at least the stove itself, well, don’t forget about the fuse, otherwise you will disassemble the entire stove, replace the engine and other heating parts, but do not change anything, then look in fuse box and you will see a blown fuse on the plate, this will be very annoying if you are just throwing money away, so always with any breakdown, first open the assembly and see if there are fuses, see F18!

Replacing the heater motor (heater fan) VAZ 2110, 2111 and 2112

Detailed video instructions for replacing the heater fan ( oven

) on
VAZ 2110
, 2111 and 2112 cars.

VAZ 2112. how to change the combustion engine (new model).

Video review of a new type of replacement electric fan heater for VAZ 2110

Do it yourself.

How to replace the oven fan on a VAZ 2110-VAZ 2112?

The note! These instructions for replacing the furnace heater are suitable for many cars of the tenth family, but not for all, since dozens were manufactured with very different levels of trim and design, for some VAZ 2110 even the Opel engine was supplied from the factory, such a VAZ car marked 21106. so we can't write about everything (because it would be a very long article), just take the most common tenth family and use it to show furnace motor replacement with description tools and drawings. !

Important points

In order for the stove repair to proceed as quickly as possible, and its results not to disappoint the car owner, you should adhere to the rules below:

• When removing the old motor, be sure to turn it. If this is not done, part of its fastening may break and get stuck in the torpedo, or more precisely, in the mounting bracket. And getting to the stuck fragment will not be so easy.
• When tightening the mounting screws with a Phillips screwdriver, you should not use too much force: they are small, so the threads in their sockets can easily be stripped.

As practice shows, replacing an engine is not particularly difficult even for a novice car enthusiast if he has held a wrench and a screwdriver in his hands at least once in his life. The whole procedure takes 40–50 minutes maximum. The main thing is not to overdo it with tightening the fasteners, and everything will be fine.

Sources:

https://ladafakt.ru/kak-pomenyat-motorchik-pechki-na-vaz-2110.html https://ladafakt.ru/kak-snyat-motorchik-pechki-vaz-2110.html https://litezona. ru/kak-snjat-motorchik-pechki-vaz-2114-video/